Characteristics and outcomes of myocardial infarction among burn patients: A nationwide analysis

To examine the characteristics and outcomes of myocardial infarction (MI) among burn patients.

The Nationwide Readmissions Database was utilized to identify hospitalizations of patients with burns from 2016 to 2020. The main outcome was the difference in all-cause in-hospital mortality between burn patients with and without MI.

Of 200,130 hospitalizations with burns, 1997 (1 %) developed acute MI. Burn patients with MI were older, more likely to be men, and had a higher prevalence of cardiovascular risk factors. Only burns affecting the trunk and respiratory tract, and those affecting > 20 % of body surface area (BSA), were associated with an increased risk of MI. All-cause in-hospital mortality was higher among patients with MI (18.7 % vs. 3 %, adjusted odds ratio (aOR) 4.59, 95 % confidence interval (CI) 3.66, 5.76). Cardiogenic shock, ventricular tachycardia, and stroke rates were higher among patients with MI. Revascularization was associated with lower in-hospital mortality (aOR 0.33, 95 % CI 0.17, 0.64) CONCLUSIONS: The incidence of MI in burn patients is low but is associated with high mortality and morbidity. Burns involving the trunk and respiratory tract, and those affecting > 20 % BSA, were associated with an increased risk of MI. Revascularization was associated with lower in-hospital mortality.